David Brin

David Brin is an astrophysicist whose best-selling and Hugo award winning novels include The Postman, Earth, and recently Existence. Brin serves on advisory boards (e.g. NASA's Innovative and Advanced Concepts program) and speaks or consults on a wide range of topics. His nonfiction book about the information age - The Transparent Society - won the Freedom of Speech Award of the American Library Association.